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发明名称
COMPUTER SYSTEM
摘要
申请公布号
GB9020888(D0)
申请公布日期
1990.11.07
申请号
GB19900020888
申请日期
1990.09.25
申请人
SECURITAG SYSTEMS LIMITED
发明人
分类号
G07C9/00;H04N1/00;H04N1/387
主分类号
G07C9/00
代理机构
代理人
主权项
地址
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